Ring-spinning machine



No. 622,I8I. Patented Mar. 28, |899. G. 0. 'DRAPER RING SPINNINGMACHINE.

(Application Ied June 4, 1898.I

(No Model.)

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NrTnn STATES PATENT Trice.

GEORGE O. DRAPER, OF IIOPEDALE, MASSACHUSETTS, ASSIGNOR TO THE DRAPERCOMPANY, OE SAME PLACE AND PORTLAND, MAINE.

RING-SPINNING MACHINE.

SPECIFICATION forming part of Letters Patent No. 622,181, dated March28,1899.

Application filed J'nne 4,1898. Serial No. 682,539. (No model.)

To all whom it may concern; p

Be it known that I, GEORGE O. DRAPER, of IIopedale, county of Worcester,State of Massachusetts, have invented an Improvement in Ring-S pinningMachines, of which the following description, in connection withtheaccompanying drawings, is a specification, like letters and figureson the drawings representing like parts.

This invention relates to ring-spinning machines wherein the usualseparators are displaced by a guard or curtain longitudinally extendedback of the spindles to receive the impact of the yarn and preventexcessive ballooning, such a device being shown in United States PatentNo. 599,539, dated February 22, 1898.

In another application, led on the 4th day of June, 1898, Serial No.682,588, I have shown a flexible curtain suspended from its upper edgeback of the spindles, the supports for the guard or curtainbeingventirely independent of the ring-rail.

My present invention has for its object the production of apparatus ofthe same general type embodying several novel features; .but herein Iemploy a substantially inflexible guard supported in such manner as totraverse in unison with the ring-rail. Preferably the guard is mountedupon the ring-rail, and in order to obviate any interference with theguide or thread board at the upper end of the traverse I have providedmeans for stopping the upward movement of the guard, the supportstherefor being arranged to yield for the purpose.

Figure l is a transverse sectional view of a sufficient portion of aring-spinning machine to be understood, with the preferred embodiment ofmy invention applied thereto, the ring-rail being shown in full anddotted lines at the bottom and top of its traverse, respectively; andFig. 2 is a perspective detail, enlarged, to be described.

The frame A, roller-beam A', spindle and I prefer to make the guard G ofthin sheet metal or other suitable light material substantiallyinflexible and which will retain its shape, the preferred form beingherein shown as curved or rounded transversely or from top to bottom,with its convex surface outward toward the spindles. I have herein shownthe guard as supported by the ringrail itself, though it might beotherwise mounted-as, for instance, on the traverserods-so long as theguard traverses with the ring-rail. Brackets a are attached to the frontof the ring-rail, preferably one at each end thereof, to which arepivoted at Ct' upwardly and rearwardly extended arms 0.2, the free endsof the arms passing through slots g in the guard and extending beyondthe latter, as at a3.

Brackets o, having ears Z9', are secured to the rear face of the guard,and the arms a2 are pivotally connected with said ears at bx, a shouldera4 on the arm normallyresting against a stop b2 on the bracket b. (SeeFig. 2.

I prefer to weight the lower edge of the guard, as by attaching a rod gthereto, so that the shoulder and stop referred to will be normally heldin engagement, with the guard in proper upright position.

A suitable spring s (see dotted lines', Fig. 1) is provided at thefulcrum a' of each arm a2, one end of said spring being attached to thearm and the other end to the bracket a, the winding of the spring beingsuch that the arms are normally held lifted in full-line position, Fig.l, with a shoulder a5 abutting against the top of the bracket a. As theringrail approaches the upper end of its traverse the guard would,unless prevented, interfere With the thread-board T, and I prevent suchinterference by mounting, preferably, a roll c on a stand cx, attachedto a part of the frame, as the roller-beam A', said roll being in thepath of the extension a3 of the supporting-arm a2. When said extensionengages the roll, the upward movement of the guard is stopped, the armsa2 then rocking on their fulcra a', as shown in dotted lines Fig'l. Theguard G then rocks by gravity on its pivots bx relatively to the armsand is thus prevented from interfering with the ring-rail as the lattercompletes its traverse into dotted-line position, Fig. l. The rolls ctra-vel along the extensions a3 and reduce the friction thereupon duringmovement of the arms Ca2 relative -to the ring-rail. \Vhen the ring-railis near the upper end of its traverse, there is practically no necessityfor the guard,

so that the stoppage of the latter-,as described,

is unobjectionable.

By weighting the lower edge of the guard it is maintained by gravity inoperative position.

The supporting-arms maybe depressed by hand when doliing, if necessary,to thus keep the guard out of the way at such time.

Any suitable lock or catch can be provided to retain the arms sodepressed, the lock or catch being liberated by the operator whenstarting the frame after dofling.

I have shown in Fig. l a very simple form of lock-viz., a spring bolt ordog 75, mounted in a housing on a bracket 80, attached to the mainframe, a portion of the extension a3 of one of the supporting-arms beingshown in Fig. l in dotted lines as engaged by the bolt.

Having fully described my invention, what I claim, and desire to secureby Letters Patent, is-

l. In a ring-spinning machine, the reciprocating ring-rail, aguard,which in vertical section is curved from top to bottom, extendedbehind the spindles with its convex surface toward the spindles, andmeans to support the guard and traverse it in unison with the ringrail.l

2. In a ring-spinning machine, the reciprocating ring-rail, asubstantially inflexible guard back of the spindles and yieldinglymounted to traverse with Vthe ring-rail, and means to stop the movementof the guard during the upper part of the traverse of the ringrail.

3. In a ring-spinning machine, the reciprocating rin g-rail,yieldingly-mounted supports on the ring-rail, a substantially inflexibleguard back of the spindles and pivotally connected with said supportsand maintained by gravityin upright position, and means to stop themovement of the free ends of said supports at the upper end of thetraverse.

4. In a ring-spinning machine, a guard extended longitudinally back ofthe spindles, the ring rail, spring controlled supports mounted thereonand connected with the guard, stops to normally maintain the supports inelevated position, and means to stop the upward movement of the guard atthe upper portion of the traverse.

5. In a ring-spinning machine, a guard extended longitudinally behindthe spindles, supports therefor, adapted to traverse in unison with thering-rail, and means to stop the upward movement of the guard during thecompletion of the traverse at the upper end thereof.

6. In a ring-spinning machine, a substantially inflexible guard extendedlongitudinally behind the spindles, the ring-rail, rocking arms mountedthereon and pivotally eonnected with the guard, the free ends of thearms projecting-beyond the guard, and fixed stops to engage saidprojecting ends as the ring-rail rises, to thereby check the upwardmovement of the guard. l

7. In a ring-spinning machine, a guard curved from top to bottom invertical section and pivotally mounted on substantially horizontalpivots, and extended longitudinally back of the spindles with its convexsurface turn ed toward them, said pivots being located below the top ofthe guard.

8. In a ring-spinning machine, a guard extended longitudinally back ofthe spindles and substantially horizontal pivots therefor between itsupper and lower edges, the weight of the guard being distributed topresent a heavier section below the pivot thereof.

In testimony whereof I have signed my name to this specification in thepresence of two subscribing witnesses.

GEORGE O. DRAPER. Vitnesses:

E. D. BANcRoFT, A. II. CoUsINs.

